These procedures will later be used in the ChainstateManager to compute
statistics (particularly a content hash) for UTXO sets coming in from
snapshots.
e78aaf41f4 [docs] Add release notes for burying bip 9 soft fork deployments (John Newbery)
8319e738f9 [tests] Add coverage for the content of getblockchaininfo.softforks (James O'Beirne)
0328dcdcfc [Consensus] Bury segwit deployment (John Newbery)
1c93b9b31c [Consensus] Bury CSV deployment height (John Newbery)
3862e473f0 [rpc] Tidy up reporting of buried and ongoing softforks (John Newbery)
Pull request description:
This hardcodes CSV and segwit activation heights, similar to the BIP 90 buried deployments for BIPs 34, 65 and 66.
CSV and segwit have been active for over 18 months. Hardcoding the activation height is a code simplification, makes it easier to understand segwit activation status, and reduces technical debt.
This was originally attempted by jl2012 in #11398 and again by me in #12360.
ACKs for top commit:
ajtowns:
ACK e78aaf41f4 ; checked diff to previous acked commit, checked tests still work
ariard:
ACK e78aaf4, check diff, run the tests again and successfully activated csv/segwit heights on mainnet as expected.
MarcoFalke:
ACK e78aaf41f4 (still didn't check if the mainnet block heights are correct, but the code looks good now)
Tree-SHA512: 7e951829106e21a81725f7d3e236eddbb59349189740907bb47e33f5dbf95c43753ac1231f47ae7bee85c8c81b2146afcdfdc11deb1503947f23093a9c399912
i.e. any CoinsViews members. Adds a lock acquisition to `gettxoutsetinfo` RPC
to comply with added annotations.
Co-authored-by: Russell Yanofsky <russ@yanofsky.org>
This change encapsulates UTXO set data within CChainState instances, removing
global data `pcoinsTip` and `pcoinsviewdb`. This is necessary if we want to
maintain multiple chainstates with their own rendering of the UTXO set.
We introduce a class CoinsViews which consolidates the construction of a
CCoins* hierarchy. Construction of its various pieces (db, coinscatcher,
in-memory cache) is split up so that we avoid flushing bad state to disk if
startup is interrupted.
We also introduce `CChainState::CanFlushToDisk()` which tells us when it is
safe to flush the chainstate based on this partial construction.
This commit could be broken into smaller pieces, but it would require more
ephemeral diffs to, e.g., temporarily change CCoinsViewDB's constructor
invocations.
Other changes:
- A parameter has been added to the CCoinsViewDB constructor that allows the
name of the corresponding leveldb directory to be specified.
Thanks to Russell Yanofsky and Marco Falke for helpful feedback.
This combines reporting of buried (formally ISM) softfork deployments
and BIP9 versionbits softfork deployments into one JSON object in the
getblockchaininfo return object.
682a1d0f20 refactoring: remove mapBlockIndex global (James O'Beirne)
55d525ab90 refactoring: make pindexBestInvalid internal to validation.cpp (James O'Beirne)
4ed55dfcd7 refactoring: add block_index_candidates arg to LoadBlockIndex (James O'Beirne)
613c46fe9e refactoring: move block metadata structures into BlockManager (James O'Beirne)
Pull request description:
This is part of the [assumeutxo project](https://github.com/bitcoin/bitcoin/projects/11):
Parent PR: #15606
Issue: #15605
Specification: https://github.com/jamesob/assumeutxo-docs/tree/2019-04-proposal/proposal
---
Under an assumeutxo model, we have multiple CChainState instances in use at once in order to support background validation. Currently, each CChainState instance has its own mapBlockIndex, a collection of linked block headers, in addition to a few other data structures that are related to maintenance of the block tree but not necessarily to any given chainstate.
In order to avoid duplicating this data across chainstates, this change moves chainstate-agnostic block metadata (and related behavior) into a class, `BlockManager`. Chainstates are parameterized with a reference to a blockmanager instance and in practice they share the same instance.
Most of this change is conceptually move-only, though the diff is somewhat muddled. The first commit can be reviewed slightly more easily with `--color-moved=dimmed_zebra`. Admittedly, that commit is pretty unwieldy; I tried to split it up after the fact with `git add --patch`, but that was difficult because of git's inability to split hunks past a certain point. Some of the moves also ended up being obscured when done over separate commits.
ACKs for top commit:
MarcoFalke:
ACK 682a1d0f20
ryanofsky:
utACK 682a1d0f20, only changes since last review were rebase and fixing conflict on a moved line
ariard:
utACK 682a1d0. Most of the changes are move-only, with main problem being to avoid creating circular dependencies between `BlockManager` and `CChainState`. Tested, comments are mostly nits, feel free to ignore them
Tree-SHA512: 738d8d06539ba53acf4bd2d48ae000473e645bbc4e63d798d55d247a4d5a4f781b73538ed590f6407be9ab402ea9d395570ea20bff0a4b9ce747bcc1600c5108
b6fb617aaa rpc: switch to using RPCHelpMan.Check() (Karl-Johan Alm)
c7a9fc234f Make the RPCHelpMan aware of JSONRPCRequest and add Check() helper (Karl-Johan Alm)
5c5e32bbe3 rpc: migrate JSONRPCRequest functionality into request.cpp (Karl-Johan Alm)
0ab8ba1ac6 rpc: fix RPC help requirements for getblocktemplate (Karl-Johan Alm)
Pull request description:
Every single RPC call has a helper-section at the start, which throws a help string if the user asks for help or if the user provided too few/many arguments.
```C++
const RPCHelpMan help{...};
if (request.fHelp || !help.IsValidNumArgs(request.params.size())) {
throw std::runtime_error(help.ToString());
}
```
or (older version)
```C++
if (request.fHelp || request.params.size() < min || request.params.size() > max)
throw std::runtime_error(
RPCHelpMan{...}.ToString()
);
```
It seems like an obvious improvement, and less copy-pasting, to make `RPCHelpMan` aware of `JSONRPCRequest`, and to let it handle the checks instead. Both of the above become
```C++
RPCHelpMan{...}.Check(request);
```
which means we save roughly 3 lines per RPC command, and the `RPCHelpMan` instance is never referenced afterwards, so the approach is a tiny fraction cleaner.
This is a complete update, sans a few special case locations that had special rules. 623 lines turn into 284 (which includes the addition to `RPCHelpMan`).
ACKs for top commit:
laanwj:
code rview and lightly tested ACK b6fb617aaa
MarcoFalke:
ACK b6fb617aaa, looked at the diff, verified move-only where applicable
Tree-SHA512: eb73f47f812512905b852e313281d1c8df803db40a6188aa39d5a7586631664db6764491152a8a96769946c796dc56d38c6e3a66ddd06ba3fb9d20050e6274e1
26fe9b9909 Add support for descriptors to utxoupdatepsbt (Pieter Wuille)
3135c1a2d2 Abstract out UpdatePSBTOutput from FillPSBT (Pieter Wuille)
fb90ec3c33 Abstract out EvalDescriptorStringOrObject from scantxoutset (Pieter Wuille)
eaf4f88734 Abstract out IsSegWitOutput from utxoupdatepsbt (Pieter Wuille)
Pull request description:
This adds a descriptors argument to the `utxoupdatepsbt` RPC. This means:
* Input and output scripts and keys will be filled in when known.
* P2SH-witness inputs will be filled in from the UTXO set when a descriptor is provided that shows they're spending segwit outputs.
This also moves some (newly) shared code to separate functions: `UpdatePSBTOutput` (an analogue to `SignPSBTInput`), `IsSegWitOutput`, and `EvalDescriptorStringOrObject` (implementing the string or object notation parsing used in `scantxoutset`).
ACKs for top commit:
jnewbery:
utACK 26fe9b9909
laanwj:
utACK 26fe9b9909 (will hold merging until response to promag's comments)
promag:
ACK 26fe9b9, checked refactors and tests look comprehensive. Still missing a release note but can be added later.
Tree-SHA512: 1d833b7351b59d6c5ded6da399ff371a8a2a6ad04c0a8f90e6e46105dc737fa6f2740b1e5340280d59e01f42896c40b720c042f44417e38dfbee6477b894b245
67f4e9c522 Include core_io.h from core_read.cpp (practicalswift)
eca9767673 Make reasoning about dependencies easier by not including unused dependencies (practicalswift)
Pull request description:
Make reasoning about dependencies easier by not including unused dependencies.
Please note that the removed headers are _not_ "transitively included" by other still included headers. Thus the removals are real.
As an added bonus this change means less work for the preprocessor/compiler. At least 51 393 lines of code no longer needs to be processed:
```
$ git diff -u HEAD~1 | grep -E '^\-#include ' | cut -f2 -d"<" | cut -f1 -d">" | \
sed 's%^%src/%g' | xargs cat | wc -l
51393
```
Note that 51 393 is the lower bound: the real number is likely much higher when taking into account transitively included headers :-)
ACKs for commit 67f4e9:
Tree-SHA512: 0c8868aac59813f099ce53d5307eed7962dd6f2ff3546768ef9e5c4508b87f8210f1a22c7e826c3c06bebbf28bdbfcf1628ed354c2d0fdb9a31a42cefb8fdf13
403e677c9 refactoring: IsInitialBlockDownload -> CChainState (James O'Beirne)
3ccbc376d refactoring: FlushStateToDisk -> CChainState (James O'Beirne)
4d6688603 refactoring: introduce ChainstateActive() (James O'Beirne)
d7c97edee move-only: make the CChainState interface public (James O'Beirne)
Pull request description:
This is part of the [assumeutxo project](https://github.com/bitcoin/bitcoin/projects/11):
Parent PR: #15606
Issue: #15605
Specification: https://github.com/jamesob/assumeutxo-docs/tree/2019-04-proposal/proposal
---
This changeset starts moving functionality intimately related to CChainState into methods. Parameterizing these functions by a particular CChainState is necessary for the use of multiple chainstates simultaneously (e.g. for asynchronous background validation).
In this change, we
- make the CChainState interface public - since other units will start to invoke its methods directly,
- introduce `::ChainstateActive()`, the CChainState equivalent for `::ChainActive()`,
- and move `IsInitialBlockDownload()` and `FlushStateToDisk()` into methods on CChainState.
Independent of assumeutxo, these changes better encapsulate chainstate behavior and allow easier use from a testing context.
There are more methods that we'll move in the future, but they require other substantial changes (i.e. moving ownership of the `CCoinsView*` hierarchy into CChainState) so we'll save them for future PRs.
---
The first move-only commit is most easily reviewed with `git diff ... --color-moved=dimmed_zebra`.
ACKs for commit 403e67:
Empact:
utACK 403e677c9e no need to address my nits herein
Sjors:
utACK 403e677
ryanofsky:
utACK 403e677c9e. Only change since previous review is removing global state comment as suggested.
MarcoFalke:
utACK 403e677c9e, though the diff still seems a bit bloated with some unnecessary changes in the second commit.
promag:
utACK 403e677 and rebased with current [master](c7cfd20a7).
Tree-SHA512: 6fcf260bb2dc201361170c0b4547405366f5f331fcc3a2bac29b24442814b7b244ca1b58aac5af716885f9a130c343b544590dff780da0bf835c7c5b3ccb2257
Also renames global methods for clarity:
- ::FlushStateToDisk() -> CChainState::ForceFlushStateToDisk()
- This performs an unconditional flush.
- ::PruneAndFlush() -> CChainState::PruneAndFlush()
d20d756752 rpc: faster getblockstats using BlockUndo data (Felix Weis)
Pull request description:
Using undo data for a block (rev?????.dat) we can retrieve value information about prevouts and calculate the final transaction fee (rate). This approach is about 80x faster, drops the requirement for `-txindex`, and works for all non-pruned blocks.
```
# 2018-11-25T16:36:19Z Bitcoin Core version v0.17.99.0-edc715240-dirty (release build)
seq 550100 550200 0.00s user 0.00s system 62% cpu 0.004 total
xargs -n1 src/bitcoin-cli getblockstats 0.21s user 0.19s system 17% cpu 2.302 total
# 2018-11-25T16:39:17Z Bitcoin Core version v0.17.0 (release build)
seq 550100 550200 0.00s user 0.00s system 87% cpu 0.002 total
xargs -n1 src/bitcoin-cli getblockstats 0.24s user 0.22s system 0% cpu 3:19.42 total
```
ACKs for commit d20d75:
MarcoFalke:
re-utACK d20d756752
Tree-SHA512: 5babc3eb8d2fee2cb23dc12f522656b80737a540cbf2b13390a8f388304c46c064cca76f896b46a6e2abae8cc582d28e1ab20dd4bb17ad6142f20630c2d30c54
Using undo data for a block (rev?????.dat) we can retrieve value information about prevouts and calculate the final transaction fee (rate). This approach is about 80x faster, drops the requirement for -txindex, and works for all non-pruned blocks.
510c6532ba Extract ParseDescriptorRange (Ben Woosley)
Pull request description:
So as to be consistently informative when the checks fail, and
to protect against unintentional divergence among the checks.
ACKs for commit 510c65:
meshcollider:
Oh apologies, yes. Thanks :) utACK 510c6532ba
MarcoFalke:
utACK 510c6532ba
sipa:
utACK 510c6532ba
Tree-SHA512: b1f0792bfaa163890a20654a0fc2c4c4a996659916bf5f4a495662436b39326692a1a0c825caafd859e48c05f5dd1865c4f7c28092be5074edda3c94f94f9f8b
Though at the moment ChainActive() simply references `g_chainstate.m_chain`,
doing this change now clears the way for multiple chainstate usage and allows
us to script the diff.
-BEGIN VERIFY SCRIPT-
git grep -l "chainActive" | grep -E '(h|cpp)$' | xargs sed -i '/chainActive =/b; /extern CChain& chainActive/b; s/\(::\)\{0,1\}chainActive/::ChainActive()/g'
-END VERIFY SCRIPT-
faea56400d rpc: Add lock annotations to block{,header}ToJSON (MarcoFalke)
fab00a5cb9 rpc: Serialize in getblock without cs_main (MarcoFalke)
fa1c3591ad rpc: Use IsValidNumArgs in getblock (MarcoFalke)
Pull request description:
No need to hold cs_main when serializing a struct to json
Fixes: #15925
ACKs for commit faea56:
jnewbery:
utACK faea56400d
jonasschnelli:
utACK faea56400d
Tree-SHA512: 005d378cda1e6024e9f5142f99a8adbefe202cd7bfeaafee55eb909e8990a3790aa27fcf5dd16119cc9afe9dc8bd30f660de40233316781669be166bac3018e7
effe81f750 Move g_is_mempool_loaded into CTxMemPool::m_is_loaded (Ben Woosley)
bb8ae2c419 rpc: Expose g_is_mempool_loaded via getmempoolinfo and /rest/mempool/info.json (Ben Woosley)
Pull request description:
And use it to fix a race condition in mempool_persist.py:
https://travis-ci.org/Empact/bitcoin/jobs/487577243
Since e.g. getrawmempool returns errors based on this status, this
enables users to test it for readiness.
Fixes#12863
ACKs for commit effe81:
MarcoFalke:
utACK effe81f750
jnewbery:
utACK effe81f750
Tree-SHA512: 74328b0c17a97efb8a000d4ee49b9a673c2b6dde7ea30c43a6a2eff961a233351c9471f9a42344412135786c02bdf2ee1b2526651bb8fed68bd94d2120c4ef86
765c0b364d refactor: combine Chain::findFirstBlockWithTime/findFirstBlockWithTimeAndHeight (Antoine Riard)
Pull request description:
As suggested in #14711, pass height to CChain::FindEarliestAtLeast to
simplify Chain interface by combining findFirstBlockWithTime and
findFirstBlockWithTimeAndHeight into one
ACKs for commit 765c0b:
jnewbery:
utACK 765c0b364d. Nice work @ariard!
ryanofsky:
utACK 765c0b364d. Looks good, thanks for implementing the suggestion!
Tree-SHA512: 63f98252a93da95f08c0b6325ea98f717aa9ae4036d17eaa6edbec68e5ddd65672d66a6af267b80c36311fffa9b415a47308e95ea7718b300b685e23d4e9e6ec
418d3230f8 Resolve the checkpoints <-> validation CD. (251)
Pull request description:
This pull request attempts to resolve the `checkpoints -> validation -> checkpoints` circular dependency.
The circular dependency is resolved by moving the `CheckPoints::GetLastCheckpoint(const CCheckpointData& data)` function to `validation.cpp` where it used exclusively by the private function `ContextualCheckBlockHeader(const CBlockHeader& block, CValidationState& state, const CChainParams& params, const CBlockIndex* pindexPrev, int64_t nAdjustedTime)`.
ACKs for commit 418d32:
promag:
utACK 418d323, only `GetLastCheckpoint` usage is in `validation.cpp` and so makes sense to move it there.
practicalswift:
utACK 418d3230f8
MarcoFalke:
utACK 418d3230f8
sipa:
utACK 418d3230f8
Tree-SHA512: 03c3556bc192e65f5e3fa76fd545d4ee7d63d3fb06b132f7a1fa6131aa21ddd2e5b2d19e2222dfe524f422daaca30efde219bed188db8c74ff4b088876b5bc16
c7efb652f3 blockfilter: Update BIP 158 test vectors. (Jim Posen)
19308c9e21 rpc: Add getblockfilter RPC method. (Jim Posen)
ff35105096 init: Add CLI option to enable block filter index. (Jim Posen)
accc8b8b18 index: Access functions for global block filter indexes. (Jim Posen)
2bc90e4e7b test: Unit test for block filter index reorg handling. (Jim Posen)
6bcf0998c0 test: Unit tests for block index filter. (Jim Posen)
b5e8200db7 index: Implement lookup methods on block filter index. (Jim Posen)
75a76e3619 index: Implement block filter index with write operations. (Jim Posen)
2ad2338ef9 serialize: Serialization support for big-endian 32-bit ints. (Jim Posen)
ba6ff9a6f7 blockfilter: Functions to translate filter types to/from names. (Jim Posen)
62b7a4f094 index: Ensure block locator is not stale after chain reorg. (Jim Posen)
4368384f1d index: Allow atomic commits of index state to be extended. (Jim Posen)
Pull request description:
This introduces a new BlockFilterIndex class, which is required for BIP 157 support.
The index is uses the asynchronous BaseIndex infrastructure driven by the ValidationInterface callbacks. Filters are stored sequentially in flat files and the disk location of each filter is indexed in LevelDB along with the filter hash and header. The index is designed to ensure persistence of filters reorganized out of the main chain to simplify the BIP 157 net implementation.
Stats (block height = 565500):
- Syncing the index from scratch takes 45m
- Total index size is 3.8 GiB
ACKs for commit c7efb6:
MarcoFalke:
utACK c7efb652f3
ryanofsky:
Slightly tested ACK c7efb652f3 (I just rebuilt the index with the updated PR and tested the RPC). Changes since last review: rebase, fixed compile errors in internal commits, new comments, updated error messages, tweaked cache size logic, renamed commit method, renamed constants and globals, fixed whitespace, extra BlockFilterIndex::Init error check.
Tree-SHA512: f8ed7a9b6f76df45933aa5eba92b27b3af83f6df2ccb3728a5c89eec80f654344dc14f055f6f63eb9b3a7649dd8af6553fe14969889e7e2fd2f8461574d18f28
Adds the following util units and adds them to libbitcoin_util:
- `util/url.cpp` takes `urlDecode` from `httpserver.cpp`
- `util/error.cpp` takes `TransactionErrorString` from
`node/transaction.cpp` and `AmountHighWarn` and `AmountErrMsg` from
`ui_interface.cpp`
- `util/fees.cpp` takes `StringForFeeReason` and `FeeModeFromString` from `policy/fees.cpp`
- `util/rbf.cpp` takes `SignalsOptInRBF` from `policy/rbf.cpp`
- 'util/validation.cpp` takes `FormatStateMessage` and `strMessageMagic` from 'validation.cpp`
As suggested in #14711, pass height to CChain::FindEarliestAtLeast to
simplify Chain interface by combining findFirstBlockWithTime and
findFirstBlockWithTimeAndHeight into one
Extend findearliestatleast_edge_test in consequence
This commit resolves the checkpoints -> validation -> checkpoints
cirular dependency by moving
`CheckPoints::GetLastCheckpoint(const CCheckpointData& data)` from
`checkpoints.cpp` to `validation.cpp`.
And use it to fix a race condition in mempool_persist.py:
https://travis-ci.org/Empact/bitcoin/jobs/487577243
Since e.g. getrawmempool returns errors based on this status, this
enables users to test it for readiness.
519b0bc5dc Make last disconnected block BLOCK_FAILED_VALID, even when aborted (Pieter Wuille)
8d220417cd Optimization: don't add txn back to mempool after 10 invalidates (Pieter Wuille)
9ce9c37004 Prevent callback overruns in InvalidateBlock and RewindBlockIndex (Pieter Wuille)
9bb32eb571 Release cs_main during InvalidateBlock iterations (Pieter Wuille)
9b1ff5c742 Call InvalidateBlock without cs_main held (Pieter Wuille)
241b2c74ac Make RewindBlockIndex interruptible (Pieter Wuille)
880ce7d46b Call RewindBlockIndex without cs_main held (Pieter Wuille)
436f7d735f Release cs_main during RewindBlockIndex operation (Pieter Wuille)
1d342875c2 Merge the disconnection and erasing loops in RewindBlockIndex (Pieter Wuille)
32b2696ab4 Move erasure of non-active blocks to a separate loop in RewindBlockIndex (Pieter Wuille)
9d6dcc52c6 Abstract EraseBlockData out of RewindBlockIndex (Pieter Wuille)
Pull request description:
This PR makes a number of improvements to the InvalidateBlock (`invalidateblock` RPC) and RewindBlockIndex functions, primarily around breaking up their long-term cs_main holding. In addition:
* They're made safely interruptible (`bitcoind` can be shutdown, and no progress in either will be lost, though if incomplete, `invalidateblock` won't continue after restart and will need to be called again)
* The validation queue is prevented from overflowing (meaning `invalidateblock` on a very old block will not drive bitcoind OOM) (see #14289).
* `invalidateblock` won't bother to move transactions back into the mempool after 10 blocks (optimization).
This is not an optimal solution, as we're relying on the scheduler call sites to make sure the scheduler doesn't overflow. Ideally, the scheduler would guarantee this directly, but that needs a few further changes (moving the signal emissions out of cs_main) to prevent deadlocks.
I have manually tested the `invalidateblock` changes (including interrupting, and running with -checkblockindex and -checkmempool), but haven't tried the rewinding (which is probably becoming increasingly unnecessary, as very few pre-0.13.1 nodes remain that would care to upgrade).
Tree-SHA512: 692e42758bd3d3efc2eb701984a8cb5db25fbeee32e7575df0183a00d0c2c30fdf72ce64c7625c32ad8c8bdc56313da72a7471658faeb0d39eefe39c4b8b8474
fa38535130 bench: Benchmark MempoolToJSON (MarcoFalke)
fa5dc3534b rpc: Pass mempool into MempoolToJSON (MarcoFalke)
Pull request description:
This is used in production (e.g. https://jochen-hoenicke.de/queue/#0,24h), so add a benchmark to avoid making it even slower.
Related:
* "getrawmempool true RPC call is O(n^2)" #14765
Tree-SHA512: da09d2e54ee261af8671152f97f863cf1acd7a6adc6578e94046b1ec9e647a670c67499760ef765254f65522dfdf773c3c8729006fa2d63ccb6d53166bafc425
